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GitHub - letta-ai/letta: Letta (formerly MemGPT) is the stateful agents framework with memory, reasoning, and context management.
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octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"blog","context":"product","tag":"link","label":"blog_link_product_navbar"}" href="https://github.blog"> Blog <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> </ul> </div> </div> </div> </li> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Solutions <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 d-lg-flex flex-wrap dropdown-menu-wide"> <div class="HeaderMenu-column px-lg-4 border-lg-right mb-4 mb-lg-0 pr-lg-7"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0 pb-lg-3 mb-3 mb-lg-0"> <span class="d-block h4 color-fg-default my-1" id="solutions-by-company-size-heading">By company size</span> <ul class="list-style-none f5" aria-labelledby="solutions-by-company-size-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"enterprises","context":"solutions","tag":"link","label":"enterprises_link_solutions_navbar"}" href="https://github.com/enterprise"> Enterprises </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"small_and_medium_teams","context":"solutions","tag":"link","label":"small_and_medium_teams_link_solutions_navbar"}" href="https://github.com/team"> Small and medium teams </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"startups","context":"solutions","tag":"link","label":"startups_link_solutions_navbar"}" href="https://github.com/enterprise/startups"> Startups </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"nonprofits","context":"solutions","tag":"link","label":"nonprofits_link_solutions_navbar"}" href="/solutions/industry/nonprofits"> Nonprofits </a></li> </ul> </div> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="solutions-by-use-case-heading">By use case</span> <ul class="list-style-none f5" aria-labelledby="solutions-by-use-case-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"devsecops","context":"solutions","tag":"link","label":"devsecops_link_solutions_navbar"}" href="/solutions/use-case/devsecops"> DevSecOps </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"devops","context":"solutions","tag":"link","label":"devops_link_solutions_navbar"}" href="/solutions/use-case/devops"> DevOps </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"ci_cd","context":"solutions","tag":"link","label":"ci_cd_link_solutions_navbar"}" href="/solutions/use-case/ci-cd"> CI/CD </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"view_all_use_cases","context":"solutions","tag":"link","label":"view_all_use_cases_link_solutions_navbar"}" href="/solutions/use-case"> View all use cases </a></li> </ul> </div> </div> <div class="HeaderMenu-column px-lg-4"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="solutions-by-industry-heading">By industry</span> <ul class="list-style-none f5" aria-labelledby="solutions-by-industry-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"healthcare","context":"solutions","tag":"link","label":"healthcare_link_solutions_navbar"}" href="/solutions/industry/healthcare"> Healthcare </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"financial_services","context":"solutions","tag":"link","label":"financial_services_link_solutions_navbar"}" href="/solutions/industry/financial-services"> Financial services </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"manufacturing","context":"solutions","tag":"link","label":"manufacturing_link_solutions_navbar"}" href="/solutions/industry/manufacturing"> Manufacturing </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"government","context":"solutions","tag":"link","label":"government_link_solutions_navbar"}" href="/solutions/industry/government"> Government </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"view_all_industries","context":"solutions","tag":"link","label":"view_all_industries_link_solutions_navbar"}" href="/solutions/industry"> View all industries </a></li> </ul> </div> </div> <div class="HeaderMenu-trailing-link rounded-bottom-2 flex-shrink-0 mt-lg-4 px-lg-4 py-4 py-lg-3 f5 text-semibold"> <a href="/solutions"> View all solutions <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-right HeaderMenu-trailing-link-icon"> <path d="M6.22 3.22a.75.75 0 0 1 1.06 0l4.25 4.25a.75.75 0 0 1 0 1.06l-4.25 4.25a.751.751 0 0 1-1.042-.018.751.751 0 0 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d-lg-flex flex-wrap dropdown-menu-wide"> <div class="HeaderMenu-column px-lg-4 border-lg-right mb-4 mb-lg-0 pr-lg-7"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="resources-topics-heading">Topics</span> <ul class="list-style-none f5" aria-labelledby="resources-topics-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"ai","context":"resources","tag":"link","label":"ai_link_resources_navbar"}" href="/resources/articles/ai"> AI </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"devops","context":"resources","tag":"link","label":"devops_link_resources_navbar"}" href="/resources/articles/devops"> DevOps </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"security","context":"resources","tag":"link","label":"security_link_resources_navbar"}" href="/resources/articles/security"> Security </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"software_development","context":"resources","tag":"link","label":"software_development_link_resources_navbar"}" href="/resources/articles/software-development"> Software Development </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"view_all","context":"resources","tag":"link","label":"view_all_link_resources_navbar"}" href="/resources/articles"> View all </a></li> </ul> </div> </div> <div class="HeaderMenu-column px-lg-4"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0 border-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="resources-explore-heading">Explore</span> <ul class="list-style-none f5" aria-labelledby="resources-explore-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"learning_pathways","context":"resources","tag":"link","label":"learning_pathways_link_resources_navbar"}" href="https://resources.github.com/learn/pathways"> Learning Pathways <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"events_amp_webinars","context":"resources","tag":"link","label":"events_amp_webinars_link_resources_navbar"}" href="https://resources.github.com"> Events & Webinars <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"ebooks_amp_whitepapers","context":"resources","tag":"link","label":"ebooks_amp_whitepapers_link_resources_navbar"}" href="https://github.com/resources/whitepapers"> Ebooks & Whitepapers </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"customer_stories","context":"resources","tag":"link","label":"customer_stories_link_resources_navbar"}" href="https://github.com/customer-stories"> Customer Stories </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary Link--external" target="_blank" data-analytics-event="{"location":"navbar","action":"partners","context":"resources","tag":"link","label":"partners_link_resources_navbar"}" href="https://partner.github.com"> Partners <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-link-external HeaderMenu-external-icon color-fg-subtle"> <path d="M3.75 2h3.5a.75.75 0 0 1 0 1.5h-3.5a.25.25 0 0 0-.25.25v8.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-3.5a.75.75 0 0 1 1.5 0v3.5A1.75 1.75 0 0 1 12.25 14h-8.5A1.75 1.75 0 0 1 2 12.25v-8.5C2 2.784 2.784 2 3.75 2Zm6.854-1h4.146a.25.25 0 0 1 .25.25v4.146a.25.25 0 0 1-.427.177L13.03 4.03 9.28 7.78a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042l3.75-3.75-1.543-1.543A.25.25 0 0 1 10.604 1Z"></path> </svg> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"executive_insights","context":"resources","tag":"link","label":"executive_insights_link_resources_navbar"}" href="https://github.com/solutions/executive-insights"> Executive Insights </a></li> </ul> </div> </div> </div> </li> <li class="HeaderMenu-item position-relative flex-wrap flex-justify-between flex-items-center d-block d-lg-flex flex-lg-nowrap flex-lg-items-center js-details-container js-header-menu-item"> <button type="button" class="HeaderMenu-link border-0 width-full width-lg-auto px-0 px-lg-2 py-lg-2 no-wrap d-flex flex-items-center flex-justify-between js-details-target" aria-expanded="false"> Open Source <svg opacity="0.5" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 px-lg-4"> <div class="HeaderMenu-column"> <div class="border-bottom pb-3 pb-lg-0 pb-lg-3 mb-3 mb-lg-0 mb-lg-3"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"github_sponsors","context":"open_source","tag":"link","label":"github_sponsors_link_open_source_navbar"}" href="/sponsors"> <div> <div class="color-fg-default h4">GitHub Sponsors</div> Fund open source developers </div> </a></li> </ul> </div> <div class="border-bottom pb-3 pb-lg-0 pb-lg-3 mb-3 mb-lg-0 mb-lg-3"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"the_readme_project","context":"open_source","tag":"link","label":"the_readme_project_link_open_source_navbar"}" href="https://github.com/readme"> <div> <div class="color-fg-default h4">The ReadME Project</div> GitHub community articles </div> </a></li> </ul> </div> <div class="border-bottom pb-3 pb-lg-0 border-bottom-0"> <span class="d-block h4 color-fg-default my-1" id="open-source-repositories-heading">Repositories</span> <ul class="list-style-none f5" aria-labelledby="open-source-repositories-heading"> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" data-analytics-event="{"location":"navbar","action":"topics","context":"open_source","tag":"link","label":"topics_link_open_source_navbar"}" href="https://github.com/topics"> Topics </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary" 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viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-chevron-down HeaderMenu-icon ml-1"> <path d="M12.78 5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 px-lg-4"> <div class="HeaderMenu-column"> <div class="border-bottom pb-3 pb-lg-0 pb-lg-3 mb-3 mb-lg-0 mb-lg-3"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"enterprise_platform","context":"enterprise","tag":"link","label":"enterprise_platform_link_enterprise_navbar"}" href="/enterprise"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" 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media=\"(prefers-color-scheme: dark)\" srcset=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/Letta-logo-RGB_GreyonTransparent_cropped_small.png\"\u003e\n \u003csource media=\"(prefers-color-scheme: light)\" srcset=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/Letta-logo-RGB_OffBlackonTransparent_cropped_small.png\"\u003e\n \u003cimg alt=\"Letta logo\" src=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/Letta-logo-RGB_GreyonOffBlack_cropped_small.png\" width=\"500\"\u003e\n \u003c/picture\u003e\u003c/themed-picture\u003e\n\u003c/p\u003e\n\u003cdiv align=\"center\" dir=\"auto\"\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch1 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eLetta (previously MemGPT)\u003c/h1\u003e\u003ca id=\"user-content-letta-previously-memgpt\" class=\"anchor\" aria-label=\"Permalink: Letta (previously MemGPT)\" href=\"#letta-previously-memgpt\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003e☄️ New release: Letta Agent Development Environment (\u003cem\u003eread more \u003ca href=\"#-access-the-ade-agent-development-environment\"\u003ehere\u003c/a\u003e\u003c/em\u003e) ☄️\u003c/strong\u003e\u003c/p\u003e\n\u003cp align=\"center\" dir=\"auto\"\u003e\n \u003cthemed-picture data-catalyst-inline=\"true\"\u003e\u003cpicture\u003e\n \u003csource media=\"(prefers-color-scheme: dark)\" srcset=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot.png\"\u003e\n \u003csource media=\"(prefers-color-scheme: light)\" srcset=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot_light.png\"\u003e\n \u003cimg alt=\"Letta logo\" src=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot.png\" width=\"800\"\u003e\n \u003c/picture\u003e\u003c/themed-picture\u003e\n\u003c/p\u003e\n\u003chr\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://letta.com\" rel=\"nofollow\"\u003eHomepage\u003c/a\u003e // \u003ca href=\"https://docs.letta.com\" rel=\"nofollow\"\u003eDocumentation\u003c/a\u003e // \u003ca href=\"https://docs.letta.com/agent-development-environment\" rel=\"nofollow\"\u003eADE\u003c/a\u003e // \u003ca href=\"https://forms.letta.com/early-access\" rel=\"nofollow\"\u003eLetta Cloud\u003c/a\u003e\u003c/p\u003e\n\u003c/h3\u003e\u003ca id=\"user-content-homepage--documentation--ade--letta-cloud\" class=\"anchor\" aria-label=\"Permalink: Homepage // Documentation // ADE // Letta Cloud\" href=\"#homepage--documentation--ade--letta-cloud\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003e👾 Letta\u003c/strong\u003e is an open source framework for building stateful LLM applications. You can use Letta to build \u003cstrong\u003estateful agents\u003c/strong\u003e with advanced reasoning capabilities and transparent long-term memory. The Letta framework is white box and model-agnostic.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://discord.gg/letta\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/0a4c715eec8377e6695e904295b465ab9e37b7e6f332d37ac3846e37a3f07b79/68747470733a2f2f696d672e736869656c64732e696f2f646973636f72642f313136313733363234333334303634303431393f6c6162656c3d446973636f7264266c6f676f3d646973636f7264266c6f676f436f6c6f723d353836354632267374796c653d666c61742d73717561726526636f6c6f723d353836354632\" alt=\"Discord\" data-canonical-src=\"https://img.shields.io/discord/1161736243340640419?label=Discord\u0026amp;logo=discord\u0026amp;logoColor=5865F2\u0026amp;style=flat-square\u0026amp;color=5865F2\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://twitter.com/Letta_AI\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/da01994075ea1dbd944cf0883cee51ee589f9c87889d55b3b34386d20ba770c5/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f466f6c6c6f772d2534304c657474615f5f41492d3144413146323f7374796c653d666c61742d737175617265266c6f676f3d78266c6f676f436f6c6f723d7768697465\" alt=\"Twitter Follow\" data-canonical-src=\"https://img.shields.io/badge/Follow-%40Letta__AI-1DA1F2?style=flat-square\u0026amp;logo=x\u0026amp;logoColor=white\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://arxiv.org/abs/2310.08560\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/0b3330583e437415c64ad9a738d8fa22746ffc83971ddab5713b407915e86589/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f52657365617263682d323331302e30383536302d4233314231423f6c6f676f3d6172786976267374796c653d666c61742d737175617265\" alt=\"arxiv 2310.08560\" data-canonical-src=\"https://img.shields.io/badge/Research-2310.08560-B31B1B?logo=arxiv\u0026amp;style=flat-square\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"/letta-ai/letta/blob/main/LICENSE\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/4dbaf2f6e74c99a9f7bc9100254cb9b95d49de1c27161fa5a9a8def2256c54f8/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f4c6963656e73652d417061636865253230322e302d73696c7665723f7374796c653d666c61742d737175617265\" alt=\"Apache 2.0\" data-canonical-src=\"https://img.shields.io/badge/License-Apache%202.0-silver?style=flat-square\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://github.com/cpacker/MemGPT/releases\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/30b28a2d55b2469371f8905f8bb91d19a44dadb64a5ee4af76afa9059c6c724f/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f762f72656c656173652f637061636b65722f4d656d4750543f7374796c653d666c61742d737175617265266c6162656c3d52656c6561736526636f6c6f723d6c696d65677265656e\" alt=\"Release\" data-canonical-src=\"https://img.shields.io/github/v/release/cpacker/MemGPT?style=flat-square\u0026amp;label=Release\u0026amp;color=limegreen\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://hub.docker.com/r/letta/letta\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/e0472f1ed32798e5bd4f58a36591f199297aad9cc2cfb4d645d3079a7ec1d778/68747470733a2f2f696d672e736869656c64732e696f2f646f636b65722f762f6c657474612f6c657474613f7374796c653d666c61742d737175617265266c6f676f3d646f636b6572266c6162656c3d446f636b657226636f6c6f723d306462376564\" alt=\"Docker\" data-canonical-src=\"https://img.shields.io/docker/v/letta/letta?style=flat-square\u0026amp;logo=docker\u0026amp;label=Docker\u0026amp;color=0db7ed\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\n\u003ca href=\"https://github.com/cpacker/MemGPT\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/a9532a1704444323339a5ecfb6fb8b6a721dfca412d9a22ba58aeb67ab157837/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f73746172732f637061636b65722f4d656d4750543f7374796c653d666c61742d737175617265266c6f676f3d676974687562266c6162656c3d537461727326636f6c6f723d676f6c64\" alt=\"GitHub\" data-canonical-src=\"https://img.shields.io/github/stars/cpacker/MemGPT?style=flat-square\u0026amp;logo=github\u0026amp;label=Stars\u0026amp;color=gold\" style=\"max-width: 100%;\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003ca href=\"https://trendshift.io/repositories/3612\" rel=\"nofollow\"\u003e\u003cimg src=\"https://camo.githubusercontent.com/8757a96b2ad45cda1a5a5ce0de645d8a50d697bf9e17483e7298200f03c82127/68747470733a2f2f7472656e6473686966742e696f2f6170692f62616467652f7265706f7369746f726965732f33363132\" alt=\"cpacker%2FMemGPT | Trendshift\" style=\"width: 250px; height: 55px; max-width: 100%;\" width=\"250\" height=\"55\" data-canonical-src=\"https://trendshift.io/api/badge/repositories/3612\"\u003e\u003c/a\u003e\u003c/p\u003e\n\u003c/div\u003e\n\u003cdiv class=\"markdown-alert markdown-alert-important\" dir=\"auto\"\u003e\u003cp class=\"markdown-alert-title\" dir=\"auto\"\u003e\u003csvg class=\"octicon octicon-report mr-2\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M0 1.75C0 .784.784 0 1.75 0h12.5C15.216 0 16 .784 16 1.75v9.5A1.75 1.75 0 0 1 14.25 13H8.06l-2.573 2.573A1.458 1.458 0 0 1 3 14.543V13H1.75A1.75 1.75 0 0 1 0 11.25Zm1.75-.25a.25.25 0 0 0-.25.25v9.5c0 .138.112.25.25.25h2a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h6.5a.25.25 0 0 0 .25-.25v-9.5a.25.25 0 0 0-.25-.25Zm7 2.25v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 9a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z\"\u003e\u003c/path\u003e\u003c/svg\u003eImportant\u003c/p\u003e\u003cp dir=\"auto\"\u003e\u003cstrong\u003eLooking for MemGPT?\u003c/strong\u003e You're in the right place!\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThe MemGPT package and Docker image have been renamed to \u003ccode\u003eletta\u003c/code\u003e to clarify the distinction between MemGPT \u003cem\u003eagents\u003c/em\u003e and the Letta API \u003cem\u003eserver\u003c/em\u003e / \u003cem\u003eruntime\u003c/em\u003e that runs LLM agents as \u003cem\u003eservices\u003c/em\u003e. Read more about the relationship between MemGPT and Letta \u003ca href=\"https://www.letta.com/blog/memgpt-and-letta\" rel=\"nofollow\"\u003ehere\u003c/a\u003e.\u003c/p\u003e\n\u003c/div\u003e\n\u003chr\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e⚡ Quickstart\u003c/h2\u003e\u003ca id=\"user-content--quickstart\" class=\"anchor\" aria-label=\"Permalink: ⚡ Quickstart\" href=\"#-quickstart\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eThe recommended way to use Letta is to run use Docker. To install Docker, see \u003ca href=\"https://docs.docker.com/get-docker/\" rel=\"nofollow\"\u003eDocker's installation guide\u003c/a\u003e. For issues with installing Docker, see \u003ca href=\"https://docs.docker.com/desktop/troubleshoot-and-support/troubleshoot/\" rel=\"nofollow\"\u003eDocker's troubleshooting guide\u003c/a\u003e. You can also install Letta using \u003ccode\u003epip\u003c/code\u003e (see instructions \u003ca href=\"#-quickstart-pip\"\u003ebelow\u003c/a\u003e).\u003c/em\u003e\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e🌖 Run the Letta server\u003c/h3\u003e\u003ca id=\"user-content--run-the-letta-server\" class=\"anchor\" aria-label=\"Permalink: 🌖 Run the Letta server\" href=\"#-run-the-letta-server\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-alert markdown-alert-note\" dir=\"auto\"\u003e\u003cp class=\"markdown-alert-title\" dir=\"auto\"\u003e\u003csvg class=\"octicon octicon-info mr-2\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8Zm8-6.5a6.5 6.5 0 1 0 0 13 6.5 6.5 0 0 0 0-13ZM6.5 7.75A.75.75 0 0 1 7.25 7h1a.75.75 0 0 1 .75.75v2.75h.25a.75.75 0 0 1 0 1.5h-2a.75.75 0 0 1 0-1.5h.25v-2h-.25a.75.75 0 0 1-.75-.75ZM8 6a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z\"\u003e\u003c/path\u003e\u003c/svg\u003eNote\u003c/p\u003e\u003cp dir=\"auto\"\u003eLetta agents live inside the Letta server, which persists them to a database. You can interact with the Letta agents inside your Letta server via the \u003ca href=\"https://docs.letta.com/api-reference\" rel=\"nofollow\"\u003eREST API\u003c/a\u003e + Python / Typescript SDKs, and the \u003ca href=\"https://app.letta.com\" rel=\"nofollow\"\u003eAgent Development Environment\u003c/a\u003e (a graphical interface).\u003c/p\u003e\n\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe Letta server can be connected to various LLM API backends (\u003ca href=\"https://docs.letta.com/models/openai\" rel=\"nofollow\"\u003eOpenAI\u003c/a\u003e, \u003ca href=\"https://docs.letta.com/models/anthropic\" rel=\"nofollow\"\u003eAnthropic\u003c/a\u003e, \u003ca href=\"https://docs.letta.com/models/vllm\" rel=\"nofollow\"\u003evLLM\u003c/a\u003e, \u003ca href=\"https://docs.letta.com/models/ollama\" rel=\"nofollow\"\u003eOllama\u003c/a\u003e, etc.). To enable access to these LLM API providers, set the appropriate environment variables when you use \u003ccode\u003edocker run\u003c/code\u003e:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"# replace `~/.letta/.persist/pgdata` with wherever you want to store your agent data\ndocker run \\\n -v ~/.letta/.persist/pgdata:/var/lib/postgresql/data \\\n -p 8283:8283 \\\n -e OPENAI_API_KEY=\u0026quot;your_openai_api_key\u0026quot; \\\n letta/letta:latest\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e replace `~/.letta/.persist/pgdata` with wherever you want to store your agent data\u003c/span\u003e\ndocker run \\\n -v \u003cspan class=\"pl-k\"\u003e~\u003c/span\u003e/.letta/.persist/pgdata:/var/lib/postgresql/data \\\n -p 8283:8283 \\\n -e OPENAI_API_KEY=\u003cspan class=\"pl-s\"\u003e\u003cspan class=\"pl-pds\"\u003e\"\u003c/span\u003eyour_openai_api_key\u003cspan class=\"pl-pds\"\u003e\"\u003c/span\u003e\u003c/span\u003e \\\n letta/letta:latest\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIf you have many different LLM API keys, you can also set up a \u003ccode\u003e.env\u003c/code\u003e file instead and pass that to \u003ccode\u003edocker run\u003c/code\u003e:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"# using a .env file instead of passing environment variables\ndocker run \\\n -v ~/.letta/.persist/pgdata:/var/lib/postgresql/data \\\n -p 8283:8283 \\\n --env-file .env \\\n letta/letta:latest\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e using a .env file instead of passing environment variables\u003c/span\u003e\ndocker run \\\n -v \u003cspan class=\"pl-k\"\u003e~\u003c/span\u003e/.letta/.persist/pgdata:/var/lib/postgresql/data \\\n -p 8283:8283 \\\n --env-file .env \\\n letta/letta:latest\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eOnce the Letta server is running, you can access it via port \u003ccode\u003e8283\u003c/code\u003e (e.g. sending REST API requests to \u003ccode\u003ehttp://localhost:8283/v1\u003c/code\u003e). You can also connect your server to the Letta ADE to access and manage your agents in a web interface.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e👾 Access the ADE (Agent Development Environment)\u003c/h3\u003e\u003ca id=\"user-content--access-the-ade-agent-development-environment\" class=\"anchor\" aria-label=\"Permalink: 👾 Access the ADE (Agent Development Environment)\" href=\"#-access-the-ade-agent-development-environment\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-alert markdown-alert-note\" dir=\"auto\"\u003e\u003cp class=\"markdown-alert-title\" dir=\"auto\"\u003e\u003csvg class=\"octicon octicon-info mr-2\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8Zm8-6.5a6.5 6.5 0 1 0 0 13 6.5 6.5 0 0 0 0-13ZM6.5 7.75A.75.75 0 0 1 7.25 7h1a.75.75 0 0 1 .75.75v2.75h.25a.75.75 0 0 1 0 1.5h-2a.75.75 0 0 1 0-1.5h.25v-2h-.25a.75.75 0 0 1-.75-.75ZM8 6a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z\"\u003e\u003c/path\u003e\u003c/svg\u003eNote\u003c/p\u003e\u003cp dir=\"auto\"\u003eFor a guided tour of the ADE, watch our \u003ca href=\"https://www.youtube.com/watch?v=OzSCFR0Lp5s\" rel=\"nofollow\"\u003eADE walkthrough on YouTube\u003c/a\u003e, or read our \u003ca href=\"https://www.letta.com/blog/introducing-the-agent-development-environment\" rel=\"nofollow\"\u003eblog post\u003c/a\u003e and \u003ca href=\"https://docs.letta.com/agent-development-environment\" rel=\"nofollow\"\u003edeveloper docs\u003c/a\u003e.\u003c/p\u003e\n\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eThe Letta ADE is a graphical user interface for creating, deploying, interacting and observing with your Letta agents. For example, if you're running a Letta server to power an end-user application (such as a customer support chatbot), you can use the ADE to test, debug, and observe the agents in your server. You can also use the ADE as a general chat interface to interact with your Letta agents.\u003c/p\u003e\n\u003cp align=\"center\" dir=\"auto\"\u003e\n \u003cthemed-picture data-catalyst-inline=\"true\"\u003e\u003cpicture\u003e\n \u003csource media=\"(prefers-color-scheme: dark)\" srcset=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot.png\"\u003e\n \u003csource media=\"(prefers-color-scheme: light)\" srcset=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot_light.png\"\u003e\n \u003cimg alt=\"ADE screenshot\" src=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot.png\" width=\"800\"\u003e\n \u003c/picture\u003e\u003c/themed-picture\u003e\n\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eThe ADE can connect to self-hosted Letta servers (e.g. a Letta server running on your laptop), as well as the Letta Cloud service. When connected to a self-hosted / private server, the ADE uses the Letta REST API to communicate with your server.\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch4 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e🖥️ Connecting the ADE to your local Letta server\u003c/h4\u003e\u003ca id=\"user-content-️-connecting-the-ade-to-your-local-letta-server\" class=\"anchor\" aria-label=\"Permalink: 🖥️ Connecting the ADE to your local Letta server\" href=\"#️-connecting-the-ade-to-your-local-letta-server\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eTo connect the ADE with your local Letta server, simply:\u003c/p\u003e\n\u003col dir=\"auto\"\u003e\n\u003cli\u003eStart your Letta server (\u003ccode\u003edocker run ...\u003c/code\u003e)\u003c/li\u003e\n\u003cli\u003eVisit \u003ca href=\"https://app.letta.com\" rel=\"nofollow\"\u003ehttps://app.letta.com\u003c/a\u003e and you will see \"Local server\" as an option in the left panel\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp align=\"center\" dir=\"auto\"\u003e\n \u003cthemed-picture data-catalyst-inline=\"true\"\u003e\u003cpicture\u003e\n \u003csource media=\"(prefers-color-scheme: dark)\" srcset=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot_agents.png\"\u003e\n \u003csource media=\"(prefers-color-scheme: light)\" srcset=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot_agents_light.png\"\u003e\n \u003cimg alt=\"Letta logo\" src=\"https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot_agents.png\" width=\"800\"\u003e\n \u003c/picture\u003e\u003c/themed-picture\u003e\n\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e🔐 To password protect your server, include \u003ccode\u003eSECURE=true\u003c/code\u003e and \u003ccode\u003eLETTA_SERVER_PASSWORD=yourpassword\u003c/code\u003e in your \u003ccode\u003edocker run\u003c/code\u003e command:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"# If LETTA_SERVER_PASSWORD isn't set, the server will autogenerate a password\ndocker run \\\n -v ~/.letta/.persist/pgdata:/var/lib/postgresql/data \\\n -p 8283:8283 \\\n --env-file .env \\\n -e SECURE=true \\\n -e LETTA_SERVER_PASSWORD=yourpassword \\\n letta/letta:latest\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e If LETTA_SERVER_PASSWORD isn't set, the server will autogenerate a password\u003c/span\u003e\ndocker run \\\n -v \u003cspan class=\"pl-k\"\u003e~\u003c/span\u003e/.letta/.persist/pgdata:/var/lib/postgresql/data \\\n -p 8283:8283 \\\n --env-file .env \\\n -e SECURE=true \\\n -e LETTA_SERVER_PASSWORD=yourpassword \\\n letta/letta:latest\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch4 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e🌐 Connecting the ADE to an external (self-hosted) Letta server\u003c/h4\u003e\u003ca id=\"user-content--connecting-the-ade-to-an-external-self-hosted-letta-server\" class=\"anchor\" aria-label=\"Permalink: 🌐 Connecting the ADE to an external (self-hosted) Letta server\" href=\"#-connecting-the-ade-to-an-external-self-hosted-letta-server\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIf your Letta server isn't running on \u003ccode\u003elocalhost\u003c/code\u003e (for example, you deployed it on an external service like EC2):\u003c/p\u003e\n\u003col dir=\"auto\"\u003e\n\u003cli\u003eClick \"Add remote server\"\u003c/li\u003e\n\u003cli\u003eEnter your desired server name, the IP address of the server, and the server password (if set)\u003c/li\u003e\n\u003c/ol\u003e\n\u003chr\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e🧑🚀 Frequently asked questions (FAQ)\u003c/h2\u003e\u003ca id=\"user-content--frequently-asked-questions-faq\" class=\"anchor\" aria-label=\"Permalink: 🧑🚀 Frequently asked questions (FAQ)\" href=\"#-frequently-asked-questions-faq\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003e\"Do I need to install Docker to use Letta?\"\u003c/em\u003e\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eNo, you can install Letta using \u003ccode\u003epip\u003c/code\u003e (via \u003ccode\u003epip install -U letta\u003c/code\u003e), as well as from source (via \u003ccode\u003epoetry install\u003c/code\u003e). See instructions below.\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003e\"What's the difference between installing with \u003ccode\u003epip\u003c/code\u003e vs \u003ccode\u003eDocker\u003c/code\u003e?\"\u003c/em\u003e\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eLetta gives your agents persistence (they live indefinitely) by storing all your agent data in a database. Letta is designed to be used with a \u003ca href=\"https://en.wikipedia.org/wiki/PostgreSQL\" rel=\"nofollow\"\u003ePostgreSQL\u003c/a\u003e (the world's most popular database), however, it is not possible to install PostgreSQL via \u003ccode\u003epip\u003c/code\u003e, so the \u003ccode\u003epip\u003c/code\u003e install of Letta defaults to using \u003ca href=\"https://www.sqlite.org/\" rel=\"nofollow\"\u003eSQLite\u003c/a\u003e. If you have a PostgreSQL instance running on your own computer, you can still connect Letta (installed via \u003ccode\u003epip\u003c/code\u003e) to PostgreSQL by setting the environment variable \u003ccode\u003eLETTA_PG_URI\u003c/code\u003e.\u003c/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eDatabase migrations are not officially supported for Letta when using SQLite\u003c/strong\u003e, so if you would like to ensure that you're able to upgrade to the latest Letta version and migrate your Letta agents data, make sure that you're using PostgreSQL as your Letta database backend. Full compatability table below:\u003c/p\u003e\n\u003cmarkdown-accessiblity-table\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation method\u003c/th\u003e\n\u003cth\u003eStart server command\u003c/th\u003e\n\u003cth\u003eDatabase backend\u003c/th\u003e\n\u003cth\u003eData migrations supported?\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccode\u003epip install letta\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eletta server\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003eSQLite\u003c/td\u003e\n\u003ctd\u003e❌\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ccode\u003epip install letta\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003eexport LETTA_PG_URI=...\u003c/code\u003e + \u003ccode\u003eletta server\u003c/code\u003e\u003c/td\u003e\n\u003ctd\u003ePostgreSQL\u003c/td\u003e\n\u003ctd\u003e✅\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003e\u003ca href=\"https://www.docker.com/get-started/\" rel=\"nofollow\"\u003eInstall Docker\u003c/a\u003e\u003c/em\u003e\u003c/td\u003e\n\u003ctd\u003e\u003ccode\u003edocker run ...\u003c/code\u003e (\u003ca href=\"#-run-the-letta-server\"\u003efull command\u003c/a\u003e)\u003c/td\u003e\n\u003ctd\u003ePostgreSQL\u003c/td\u003e\n\u003ctd\u003e✅\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/markdown-accessiblity-table\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003e\"How do I use the ADE locally?\"\u003c/em\u003e\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eTo connect the ADE to your local Letta server, simply run your Letta server (make sure you can access \u003ccode\u003elocalhost:8283\u003c/code\u003e) and go to \u003ca href=\"https://app.letta.com\" rel=\"nofollow\"\u003ehttps://app.letta.com\u003c/a\u003e. If you would like to use the old version of the ADE (that runs on \u003ccode\u003elocalhost\u003c/code\u003e), downgrade to Letta version \u003ccode\u003e\u0026lt;=0.5.0\u003c/code\u003e.\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003e\"If I connect the ADE to my local server, does my agent data get uploaded to letta.com?\"\u003c/em\u003e\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eNo, the data in your Letta server database stays on your machine. The Letta ADE web application simply connects to your local Letta server (via the REST API) and provides a graphical interface on top of it to visualize your local Letta data in your browser's local state.\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003e\"Do I have to use your ADE? Can I build my own?\"\u003c/em\u003e\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eThe ADE is built on top of the (fully open source) Letta server and Letta Agents API. You can build your own application like the ADE on top of the REST API (view the documention \u003ca href=\"https://docs.letta.com/api-reference\" rel=\"nofollow\"\u003ehere\u003c/a\u003e).\u003c/p\u003e\n\u003cblockquote\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003e\"Can I interact with Letta agents via the CLI?\"\u003c/em\u003e\u003c/p\u003e\n\u003c/blockquote\u003e\n\u003cp dir=\"auto\"\u003eThe recommended way to use Letta is via the REST API and ADE, however you can also access your agents via the CLI.\u003c/p\u003e\n\u003cdetails\u003e\n\u003csummary\u003eView instructions for running the Letta CLI\u003c/summary\u003e\n\u003cp dir=\"auto\"\u003eYou can chat with your agents via the Letta CLI tool (\u003ccode\u003eletta run\u003c/code\u003e). If you have a Letta Docker container running, you can use \u003ccode\u003edocker exec\u003c/code\u003e to run the Letta CLI inside the container:\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"# replace `\u0026lt;letta_container_id\u0026gt;` with the ID of your Letta container, found via `docker ps`\ndocker exec -it \u0026lt;letta_container_id\u0026gt; letta run\"\u003e\u003cpre\u003e\u003cspan class=\"pl-c\"\u003e\u003cspan class=\"pl-c\"\u003e#\u003c/span\u003e replace `\u0026lt;letta_container_id\u0026gt;` with the ID of your Letta container, found via `docker ps`\u003c/span\u003e\ndocker \u003cspan class=\"pl-c1\"\u003eexec\u003c/span\u003e -it \u003cspan class=\"pl-k\"\u003e\u0026lt;\u003c/span\u003eletta_container_id\u003cspan class=\"pl-k\"\u003e\u0026gt;\u003c/span\u003e letta run\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can also use \u003ccode\u003edocker ps\u003c/code\u003e within the command to automatically find the ID of your Letta container:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"docker exec -it $(docker ps -q -f ancestor=letta/letta) letta run\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003edocker exec -it $(docker ps -q -f ancestor=letta/letta) letta run\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eIn the CLI tool, you'll be able to create new agents, or load existing agents:\u003c/p\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"🧬 Creating new agent...\n? Select LLM model: letta-free [type=openai] [ip=https://inference.memgpt.ai]\n? Select embedding model: letta-free [type=hugging-face] [ip=https://embeddings.memgpt.ai]\n-\u0026gt; 🤖 Using persona profile: 'sam_pov'\n-\u0026gt; 🧑 Using human profile: 'basic'\n-\u0026gt; 🛠️ 8 tools: send_message, pause_heartbeats, conversation_search, conversation_search_date, archival_memory_insert, archival_memory_search, core_memory_append, core_memory_replace\n\n🎉 Created new agent 'InspiringSpinach'\n\nHit enter to begin (will request first Letta message)\n\n💭 User engaged. Recognize as Chad. Acknowledge presence and establish connection. Explore interests and engage in meaningful discourse.\n🤖 Hello, Chad. It's nice to meet you. I am keen on learning and exploring new ideas and concepts. Is there a specific topic you'd like to discuss today?\n\n\u0026gt; Enter your message: my name is Brad, not Chad...\n\n💭 A discrepancy in identity. Reflect this change in core memory. Apologize for the oversight, and rectify the error.\n⚡🧠 [function] updating memory with core_memory_replace\n First name: Chad\n → First name: Brad\n💭 Apologize for the mistake in recognizing his name, and begin the conversation anew, addressing him by the correct name this time.\n🤖 I apologize for the oversight, Brad. Let's restart. It's a pleasure to meet you, Brad. Is there a specific topic you'd like to discuss today?\n\n\u0026gt; Enter your message:\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003e🧬 Creating new agent...\n? Select LLM model: letta-free [type=openai] [ip=https://inference.memgpt.ai]\n? Select embedding model: letta-free [type=hugging-face] [ip=https://embeddings.memgpt.ai]\n-\u0026gt; 🤖 Using persona profile: 'sam_pov'\n-\u0026gt; 🧑 Using human profile: 'basic'\n-\u0026gt; 🛠️ 8 tools: send_message, pause_heartbeats, conversation_search, conversation_search_date, archival_memory_insert, archival_memory_search, core_memory_append, core_memory_replace\n\n🎉 Created new agent 'InspiringSpinach'\n\nHit enter to begin (will request first Letta message)\n\n💭 User engaged. Recognize as Chad. Acknowledge presence and establish connection. Explore interests and engage in meaningful discourse.\n🤖 Hello, Chad. It's nice to meet you. I am keen on learning and exploring new ideas and concepts. Is there a specific topic you'd like to discuss today?\n\n\u0026gt; Enter your message: my name is Brad, not Chad...\n\n💭 A discrepancy in identity. Reflect this change in core memory. Apologize for the oversight, and rectify the error.\n⚡🧠 [function] updating memory with core_memory_replace\n First name: Chad\n → First name: Brad\n💭 Apologize for the mistake in recognizing his name, and begin the conversation anew, addressing him by the correct name this time.\n🤖 I apologize for the oversight, Brad. Let's restart. It's a pleasure to meet you, Brad. Is there a specific topic you'd like to discuss today?\n\n\u0026gt; Enter your message:\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003c/details\u003e\n\u003chr\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e⚡ Quickstart (pip)\u003c/h2\u003e\u003ca id=\"user-content--quickstart-pip\" class=\"anchor\" aria-label=\"Permalink: ⚡ Quickstart (pip)\" href=\"#-quickstart-pip\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-alert markdown-alert-warning\" dir=\"auto\"\u003e\u003cp class=\"markdown-alert-title\" dir=\"auto\"\u003e\u003csvg class=\"octicon octicon-alert mr-2\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"M6.457 1.047c.659-1.234 2.427-1.234 3.086 0l6.082 11.378A1.75 1.75 0 0 1 14.082 15H1.918a1.75 1.75 0 0 1-1.543-2.575Zm1.763.707a.25.25 0 0 0-.44 0L1.698 13.132a.25.25 0 0 0 .22.368h12.164a.25.25 0 0 0 .22-.368Zm.53 3.996v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 11a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z\"\u003e\u003c/path\u003e\u003c/svg\u003eWarning\u003c/p\u003e\u003cp dir=\"auto\"\u003e\u003cstrong\u003eDatabase migrations are not officially supported with \u003ccode\u003eSQLite\u003c/code\u003e\u003c/strong\u003e\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eWhen you install Letta with \u003ccode\u003epip\u003c/code\u003e, the default database backend is \u003ccode\u003eSQLite\u003c/code\u003e (you can still use an external \u003ccode\u003epostgres\u003c/code\u003e service with your \u003ccode\u003epip\u003c/code\u003e install of Letta by setting \u003ccode\u003eLETTA_PG_URI\u003c/code\u003e).\u003c/p\u003e\n\u003cp dir=\"auto\"\u003eWe do not officially support migrations between Letta versions with \u003ccode\u003eSQLite\u003c/code\u003e backends, only \u003ccode\u003epostgres\u003c/code\u003e. If you would like to keep your agent data across multiple Letta versions we highly recommend using the Docker install method which is the easiest way to use \u003ccode\u003epostgres\u003c/code\u003e with Letta.\u003c/p\u003e\n\u003c/div\u003e\n\u003cdetails\u003e\n\u003csummary\u003eView instructions for installing with pip\u003c/summary\u003e\n\u003cp dir=\"auto\"\u003eYou can also install Letta with \u003ccode\u003epip\u003c/code\u003e, which will default to using \u003ccode\u003eSQLite\u003c/code\u003e for the database backends (whereas Docker will default to using \u003ccode\u003epostgres\u003c/code\u003e).\u003c/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eStep 1 - Install Letta using \u003ccode\u003epip\u003c/code\u003e\u003c/h3\u003e\u003ca id=\"user-content-step-1---install-letta-using-pip\" class=\"anchor\" aria-label=\"Permalink: Step 1 - Install Letta using pip\" href=\"#step-1---install-letta-using-pip\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"pip install -U letta\"\u003e\u003cpre\u003epip install -U letta\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eStep 2 - Set your environment variables for your chosen LLM / embedding providers\u003c/h3\u003e\u003ca id=\"user-content-step-2---set-your-environment-variables-for-your-chosen-llm--embedding-providers\" class=\"anchor\" aria-label=\"Permalink: Step 2 - Set your environment variables for your chosen LLM / embedding providers\" href=\"#step-2---set-your-environment-variables-for-your-chosen-llm--embedding-providers\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"export OPENAI_API_KEY=sk-...\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eexport\u003c/span\u003e OPENAI_API_KEY=sk-...\u003c/pre\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eFor Ollama (see our full \u003ca href=\"https://docs.letta.com/install\" rel=\"nofollow\"\u003edocumentation\u003c/a\u003e for examples of how to set up various providers):\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"export OLLAMA_BASE_URL=http://localhost:11434\"\u003e\u003cpre\u003e\u003cspan class=\"pl-k\"\u003eexport\u003c/span\u003e OLLAMA_BASE_URL=http://localhost:11434\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eStep 3 - Run the Letta CLI\u003c/h3\u003e\u003ca id=\"user-content-step-3---run-the-letta-cli\" class=\"anchor\" aria-label=\"Permalink: Step 3 - Run the Letta CLI\" href=\"#step-3---run-the-letta-cli\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can create agents and chat with them via the Letta CLI tool (\u003ccode\u003eletta run\u003c/code\u003e):\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"letta run\"\u003e\u003cpre\u003eletta run\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"🧬 Creating new agent...\n? Select LLM model: letta-free [type=openai] [ip=https://inference.memgpt.ai]\n? Select embedding model: letta-free [type=hugging-face] [ip=https://embeddings.memgpt.ai]\n-\u0026gt; 🤖 Using persona profile: 'sam_pov'\n-\u0026gt; 🧑 Using human profile: 'basic'\n-\u0026gt; 🛠️ 8 tools: send_message, pause_heartbeats, conversation_search, conversation_search_date, archival_memory_insert, archival_memory_search, core_memory_append, core_memory_replace\n\n🎉 Created new agent 'InspiringSpinach'\n\nHit enter to begin (will request first Letta message)\n\n💭 User engaged. Recognize as Chad. Acknowledge presence and establish connection. Explore interests and engage in meaningful discourse.\n🤖 Hello, Chad. It's nice to meet you. I am keen on learning and exploring new ideas and concepts. Is there a specific topic you'd like to discuss today?\n\n\u0026gt; Enter your message: my name is Brad, not Chad...\n\n💭 A discrepancy in identity. Reflect this change in core memory. Apologize for the oversight, and rectify the error.\n⚡🧠 [function] updating memory with core_memory_replace\n First name: Chad\n → First name: Brad\n💭 Apologize for the mistake in recognizing his name, and begin the conversation anew, addressing him by the correct name this time.\n🤖 I apologize for the oversight, Brad. Let's restart. It's a pleasure to meet you, Brad. Is there a specific topic you'd like to discuss today?\n\n\u0026gt; Enter your message:\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003e🧬 Creating new agent...\n? Select LLM model: letta-free [type=openai] [ip=https://inference.memgpt.ai]\n? Select embedding model: letta-free [type=hugging-face] [ip=https://embeddings.memgpt.ai]\n-\u0026gt; 🤖 Using persona profile: 'sam_pov'\n-\u0026gt; 🧑 Using human profile: 'basic'\n-\u0026gt; 🛠️ 8 tools: send_message, pause_heartbeats, conversation_search, conversation_search_date, archival_memory_insert, archival_memory_search, core_memory_append, core_memory_replace\n\n🎉 Created new agent 'InspiringSpinach'\n\nHit enter to begin (will request first Letta message)\n\n💭 User engaged. Recognize as Chad. Acknowledge presence and establish connection. Explore interests and engage in meaningful discourse.\n🤖 Hello, Chad. It's nice to meet you. I am keen on learning and exploring new ideas and concepts. Is there a specific topic you'd like to discuss today?\n\n\u0026gt; Enter your message: my name is Brad, not Chad...\n\n💭 A discrepancy in identity. Reflect this change in core memory. Apologize for the oversight, and rectify the error.\n⚡🧠 [function] updating memory with core_memory_replace\n First name: Chad\n → First name: Brad\n💭 Apologize for the mistake in recognizing his name, and begin the conversation anew, addressing him by the correct name this time.\n🤖 I apologize for the oversight, Brad. Let's restart. It's a pleasure to meet you, Brad. Is there a specific topic you'd like to discuss today?\n\n\u0026gt; Enter your message:\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch3 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003eStep 4 - Run the Letta server\u003c/h3\u003e\u003ca id=\"user-content-step-4---run-the-letta-server\" class=\"anchor\" aria-label=\"Permalink: Step 4 - Run the Letta server\" href=\"#step-4---run-the-letta-server\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eYou can start the Letta API server with \u003ccode\u003eletta server\u003c/code\u003e (see the full API reference \u003ca href=\"https://docs.letta.com/api-reference\" rel=\"nofollow\"\u003ehere\u003c/a\u003e):\u003c/p\u003e\n\u003cdiv class=\"highlight highlight-source-shell notranslate position-relative overflow-auto\" dir=\"auto\" data-snippet-clipboard-copy-content=\"letta server\"\u003e\u003cpre\u003eletta server\u003c/pre\u003e\u003c/div\u003e\n\u003cdiv class=\"snippet-clipboard-content notranslate position-relative overflow-auto\" data-snippet-clipboard-copy-content=\"Initializing database...\nRunning: uvicorn server:app --host localhost --port 8283\nINFO: Started server process [47750]\nINFO: Waiting for application startup.\nINFO: Application startup complete.\nINFO: Uvicorn running on http://localhost:8283 (Press CTRL+C to quit)\"\u003e\u003cpre class=\"notranslate\"\u003e\u003ccode\u003eInitializing database...\nRunning: uvicorn server:app --host localhost --port 8283\nINFO: Started server process [47750]\nINFO: Waiting for application startup.\nINFO: Application startup complete.\nINFO: Uvicorn running on http://localhost:8283 (Press CTRL+C to quit)\n\u003c/code\u003e\u003c/pre\u003e\u003c/div\u003e\n\u003c/details\u003e\n\u003chr\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003ch2 tabindex=\"-1\" class=\"heading-element\" dir=\"auto\"\u003e🤗 How to contribute\u003c/h2\u003e\u003ca id=\"user-content--how-to-contribute\" class=\"anchor\" aria-label=\"Permalink: 🤗 How to contribute\" href=\"#-how-to-contribute\"\u003e\u003csvg class=\"octicon octicon-link\" viewBox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c/path\u003e\u003c/svg\u003e\u003c/a\u003e\u003c/div\u003e\n\u003cp dir=\"auto\"\u003eLetta is an open source project built by over a hundred contributors. There are many ways to get involved in the Letta OSS project!\u003c/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\u003cstrong\u003eContribute to the project\u003c/strong\u003e: Interested in contributing? Start by reading our \u003ca href=\"https://github.com/cpacker/MemGPT/tree/main/CONTRIBUTING.md\"\u003eContribution Guidelines\u003c/a\u003e.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eAsk a question\u003c/strong\u003e: Join our community on \u003ca href=\"https://discord.gg/letta\" rel=\"nofollow\"\u003eDiscord\u003c/a\u003e and direct your questions to the \u003ccode\u003e#support\u003c/code\u003e channel.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eReport issues or suggest features\u003c/strong\u003e: Have an issue or a feature request? Please submit them through our \u003ca href=\"https://github.com/cpacker/MemGPT/issues\"\u003eGitHub Issues page\u003c/a\u003e.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eExplore the roadmap\u003c/strong\u003e: Curious about future developments? View and comment on our \u003ca href=\"https://github.com/cpacker/MemGPT/issues/1533\" data-hovercard-type=\"issue\" data-hovercard-url=\"/letta-ai/letta/issues/1533/hovercard\"\u003eproject roadmap\u003c/a\u003e.\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eJoin community events\u003c/strong\u003e: Stay updated with the \u003ca href=\"https://lu.ma/berkeley-llm-meetup\" rel=\"nofollow\"\u003eevent calendar\u003c/a\u003e or follow our \u003ca href=\"https://twitter.com/Letta_AI\" rel=\"nofollow\"\u003eTwitter account\u003c/a\u003e.\u003c/li\u003e\n\u003c/ul\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003e\u003cstrong\u003eLegal notices\u003c/strong\u003e: By using Letta and related Letta services (such as the Letta endpoint or hosted service), you are agreeing to our \u003ca href=\"https://www.letta.com/privacy-policy\" rel=\"nofollow\"\u003eprivacy policy\u003c/a\u003e and \u003ca href=\"https://www.letta.com/terms-of-service\" rel=\"nofollow\"\u003eterms of service\u003c/a\u003e.\u003c/em\u003e\u003c/p\u003e\n\u003c/article\u003e","loaded":true,"timedOut":false,"errorMessage":null,"headerInfo":{"toc":[{"level":1,"text":"Letta (previously MemGPT)","anchor":"letta-previously-memgpt","htmlText":"Letta (previously MemGPT)"},{"level":3,"text":"Homepage // Documentation // ADE // Letta Cloud","anchor":"homepage--documentation--ade--letta-cloud","htmlText":"Homepage // Documentation // ADE // Letta Cloud"},{"level":2,"text":"⚡ Quickstart","anchor":"-quickstart","htmlText":"⚡ Quickstart"},{"level":3,"text":"🌖 Run the Letta server","anchor":"-run-the-letta-server","htmlText":"🌖 Run the Letta server"},{"level":3,"text":"👾 Access the ADE (Agent Development Environment)","anchor":"-access-the-ade-agent-development-environment","htmlText":"👾 Access the ADE (Agent Development Environment)"},{"level":4,"text":"🖥️ Connecting the ADE to your local Letta server","anchor":"️-connecting-the-ade-to-your-local-letta-server","htmlText":"🖥️ Connecting the ADE to your local Letta server"},{"level":4,"text":"🌐 Connecting the ADE to an external (self-hosted) Letta server","anchor":"-connecting-the-ade-to-an-external-self-hosted-letta-server","htmlText":"🌐 Connecting the ADE to an external (self-hosted) Letta server"},{"level":2,"text":"🧑🚀 Frequently asked questions (FAQ)","anchor":"-frequently-asked-questions-faq","htmlText":"🧑🚀 Frequently asked questions (FAQ)"},{"level":2,"text":"⚡ Quickstart (pip)","anchor":"-quickstart-pip","htmlText":"⚡ Quickstart (pip)"},{"level":3,"text":"Step 1 - Install Letta using pip","anchor":"step-1---install-letta-using-pip","htmlText":"Step 1 - Install Letta using pip"},{"level":3,"text":"Step 2 - Set your environment variables for your chosen LLM / embedding providers","anchor":"step-2---set-your-environment-variables-for-your-chosen-llm--embedding-providers","htmlText":"Step 2 - Set your environment variables for your chosen LLM / embedding providers"},{"level":3,"text":"Step 3 - Run the Letta CLI","anchor":"step-3---run-the-letta-cli","htmlText":"Step 3 - Run the Letta CLI"},{"level":3,"text":"Step 4 - Run the Letta server","anchor":"step-4---run-the-letta-server","htmlText":"Step 4 - Run the Letta server"},{"level":2,"text":"🤗 How to contribute","anchor":"-how-to-contribute","htmlText":"🤗 How to contribute"}],"siteNavLoginPath":"/login?return_to=https%3A%2F%2Fgithub.com%2Fletta-ai%2Fletta"}},{"displayName":"LICENSE","repoName":"letta","refName":"main","path":"LICENSE","preferredFileType":"license","tabName":"Apache-2.0","richText":null,"loaded":false,"timedOut":false,"errorMessage":null,"headerInfo":{"toc":null,"siteNavLoginPath":"/login?return_to=https%3A%2F%2Fgithub.com%2Fletta-ai%2Fletta"}}],"overviewFilesProcessingTime":0}},"appPayload":{"helpUrl":"https://docs.github.com","findFileWorkerPath":"/assets-cdn/worker/find-file-worker-7d7eb7c71814.js","findInFileWorkerPath":"/assets-cdn/worker/find-in-file-worker-708ec8ade250.js","githubDevUrl":null,"enabled_features":{"copilot_workspace":null,"code_nav_ui_events":false,"overview_shared_code_dropdown_button":true,"react_blob_overlay":false,"accessible_code_button":true,"github_models_repo_integration":false}}}}</script> <div data-target="react-partial.reactRoot"><style data-styled="true" 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QkQOb js-snippet-clipboard-copy-unpositioned undefined" data-hpc="true"><article class="markdown-body entry-content container-lg" itemprop="text"><p align="center" dir="auto"> <themed-picture data-catalyst-inline="true"><picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/Letta-logo-RGB_GreyonTransparent_cropped_small.png"> <source media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/Letta-logo-RGB_OffBlackonTransparent_cropped_small.png"> <img alt="Letta logo" src="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/Letta-logo-RGB_GreyonOffBlack_cropped_small.png" width="500"> </picture></themed-picture> </p> <div align="center" dir="auto"> <div class="markdown-heading" dir="auto"><h1 tabindex="-1" class="heading-element" dir="auto">Letta (previously MemGPT)</h1><a id="user-content-letta-previously-memgpt" class="anchor" aria-label="Permalink: Letta (previously MemGPT)" href="#letta-previously-memgpt"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><strong>☄️ New release: Letta Agent Development Environment (<em>read more <a href="#-access-the-ade-agent-development-environment">here</a></em>) ☄️</strong></p> <p align="center" dir="auto"> <themed-picture data-catalyst-inline="true"><picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot.png"> <source media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot_light.png"> <img alt="Letta logo" src="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot.png" width="800"> </picture></themed-picture> </p> <hr> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto"> <p dir="auto"><a href="https://letta.com" rel="nofollow">Homepage</a> // <a href="https://docs.letta.com" rel="nofollow">Documentation</a> // <a href="https://docs.letta.com/agent-development-environment" rel="nofollow">ADE</a> // <a href="https://forms.letta.com/early-access" rel="nofollow">Letta Cloud</a></p> </h3><a id="user-content-homepage--documentation--ade--letta-cloud" class="anchor" aria-label="Permalink: Homepage // Documentation // ADE // Letta Cloud" href="#homepage--documentation--ade--letta-cloud"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><strong>👾 Letta</strong> is an open source framework for building stateful LLM applications. You can use Letta to build <strong>stateful agents</strong> with advanced reasoning capabilities and transparent long-term memory. The Letta framework is white box and model-agnostic.</p> <p dir="auto"><a href="https://discord.gg/letta" rel="nofollow"><img src="https://camo.githubusercontent.com/0a4c715eec8377e6695e904295b465ab9e37b7e6f332d37ac3846e37a3f07b79/68747470733a2f2f696d672e736869656c64732e696f2f646973636f72642f313136313733363234333334303634303431393f6c6162656c3d446973636f7264266c6f676f3d646973636f7264266c6f676f436f6c6f723d353836354632267374796c653d666c61742d73717561726526636f6c6f723d353836354632" alt="Discord" data-canonical-src="https://img.shields.io/discord/1161736243340640419?label=Discord&logo=discord&logoColor=5865F2&style=flat-square&color=5865F2" style="max-width: 100%;"></a> <a href="https://twitter.com/Letta_AI" rel="nofollow"><img src="https://camo.githubusercontent.com/da01994075ea1dbd944cf0883cee51ee589f9c87889d55b3b34386d20ba770c5/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f466f6c6c6f772d2534304c657474615f5f41492d3144413146323f7374796c653d666c61742d737175617265266c6f676f3d78266c6f676f436f6c6f723d7768697465" alt="Twitter Follow" data-canonical-src="https://img.shields.io/badge/Follow-%40Letta__AI-1DA1F2?style=flat-square&logo=x&logoColor=white" style="max-width: 100%;"></a> <a href="https://arxiv.org/abs/2310.08560" rel="nofollow"><img src="https://camo.githubusercontent.com/0b3330583e437415c64ad9a738d8fa22746ffc83971ddab5713b407915e86589/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f52657365617263682d323331302e30383536302d4233314231423f6c6f676f3d6172786976267374796c653d666c61742d737175617265" alt="arxiv 2310.08560" data-canonical-src="https://img.shields.io/badge/Research-2310.08560-B31B1B?logo=arxiv&style=flat-square" style="max-width: 100%;"></a></p> <p dir="auto"><a href="/letta-ai/letta/blob/main/LICENSE"><img src="https://camo.githubusercontent.com/4dbaf2f6e74c99a9f7bc9100254cb9b95d49de1c27161fa5a9a8def2256c54f8/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f4c6963656e73652d417061636865253230322e302d73696c7665723f7374796c653d666c61742d737175617265" alt="Apache 2.0" data-canonical-src="https://img.shields.io/badge/License-Apache%202.0-silver?style=flat-square" style="max-width: 100%;"></a> <a href="https://github.com/cpacker/MemGPT/releases"><img src="https://camo.githubusercontent.com/30b28a2d55b2469371f8905f8bb91d19a44dadb64a5ee4af76afa9059c6c724f/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f762f72656c656173652f637061636b65722f4d656d4750543f7374796c653d666c61742d737175617265266c6162656c3d52656c6561736526636f6c6f723d6c696d65677265656e" alt="Release" data-canonical-src="https://img.shields.io/github/v/release/cpacker/MemGPT?style=flat-square&label=Release&color=limegreen" style="max-width: 100%;"></a> <a href="https://hub.docker.com/r/letta/letta" rel="nofollow"><img src="https://camo.githubusercontent.com/e0472f1ed32798e5bd4f58a36591f199297aad9cc2cfb4d645d3079a7ec1d778/68747470733a2f2f696d672e736869656c64732e696f2f646f636b65722f762f6c657474612f6c657474613f7374796c653d666c61742d737175617265266c6f676f3d646f636b6572266c6162656c3d446f636b657226636f6c6f723d306462376564" alt="Docker" data-canonical-src="https://img.shields.io/docker/v/letta/letta?style=flat-square&logo=docker&label=Docker&color=0db7ed" style="max-width: 100%;"></a> <a href="https://github.com/cpacker/MemGPT"><img src="https://camo.githubusercontent.com/a9532a1704444323339a5ecfb6fb8b6a721dfca412d9a22ba58aeb67ab157837/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f73746172732f637061636b65722f4d656d4750543f7374796c653d666c61742d737175617265266c6f676f3d676974687562266c6162656c3d537461727326636f6c6f723d676f6c64" alt="GitHub" data-canonical-src="https://img.shields.io/github/stars/cpacker/MemGPT?style=flat-square&logo=github&label=Stars&color=gold" style="max-width: 100%;"></a></p> <p dir="auto"><a href="https://trendshift.io/repositories/3612" rel="nofollow"><img src="https://camo.githubusercontent.com/8757a96b2ad45cda1a5a5ce0de645d8a50d697bf9e17483e7298200f03c82127/68747470733a2f2f7472656e6473686966742e696f2f6170692f62616467652f7265706f7369746f726965732f33363132" alt="cpacker%2FMemGPT | Trendshift" style="width: 250px; height: 55px; max-width: 100%;" width="250" height="55" data-canonical-src="https://trendshift.io/api/badge/repositories/3612"></a></p> </div> <div class="markdown-alert markdown-alert-important" dir="auto"><p class="markdown-alert-title" dir="auto"><svg class="octicon octicon-report mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M0 1.75C0 .784.784 0 1.75 0h12.5C15.216 0 16 .784 16 1.75v9.5A1.75 1.75 0 0 1 14.25 13H8.06l-2.573 2.573A1.458 1.458 0 0 1 3 14.543V13H1.75A1.75 1.75 0 0 1 0 11.25Zm1.75-.25a.25.25 0 0 0-.25.25v9.5c0 .138.112.25.25.25h2a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h6.5a.25.25 0 0 0 .25-.25v-9.5a.25.25 0 0 0-.25-.25Zm7 2.25v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 9a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path></svg>Important</p><p dir="auto"><strong>Looking for MemGPT?</strong> You're in the right place!</p> <p dir="auto">The MemGPT package and Docker image have been renamed to <code>letta</code> to clarify the distinction between MemGPT <em>agents</em> and the Letta API <em>server</em> / <em>runtime</em> that runs LLM agents as <em>services</em>. Read more about the relationship between MemGPT and Letta <a href="https://www.letta.com/blog/memgpt-and-letta" rel="nofollow">here</a>.</p> </div> <hr> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">⚡ Quickstart</h2><a id="user-content--quickstart" class="anchor" aria-label="Permalink: ⚡ Quickstart" href="#-quickstart"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto"><em>The recommended way to use Letta is to run use Docker. To install Docker, see <a href="https://docs.docker.com/get-docker/" rel="nofollow">Docker's installation guide</a>. For issues with installing Docker, see <a href="https://docs.docker.com/desktop/troubleshoot-and-support/troubleshoot/" rel="nofollow">Docker's troubleshooting guide</a>. You can also install Letta using <code>pip</code> (see instructions <a href="#-quickstart-pip">below</a>).</em></p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">🌖 Run the Letta server</h3><a id="user-content--run-the-letta-server" class="anchor" aria-label="Permalink: 🌖 Run the Letta server" href="#-run-the-letta-server"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="markdown-alert markdown-alert-note" dir="auto"><p class="markdown-alert-title" dir="auto"><svg class="octicon octicon-info mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8Zm8-6.5a6.5 6.5 0 1 0 0 13 6.5 6.5 0 0 0 0-13ZM6.5 7.75A.75.75 0 0 1 7.25 7h1a.75.75 0 0 1 .75.75v2.75h.25a.75.75 0 0 1 0 1.5h-2a.75.75 0 0 1 0-1.5h.25v-2h-.25a.75.75 0 0 1-.75-.75ZM8 6a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z"></path></svg>Note</p><p dir="auto">Letta agents live inside the Letta server, which persists them to a database. You can interact with the Letta agents inside your Letta server via the <a href="https://docs.letta.com/api-reference" rel="nofollow">REST API</a> + Python / Typescript SDKs, and the <a href="https://app.letta.com" rel="nofollow">Agent Development Environment</a> (a graphical interface).</p> </div> <p dir="auto">The Letta server can be connected to various LLM API backends (<a href="https://docs.letta.com/models/openai" rel="nofollow">OpenAI</a>, <a href="https://docs.letta.com/models/anthropic" rel="nofollow">Anthropic</a>, <a href="https://docs.letta.com/models/vllm" rel="nofollow">vLLM</a>, <a href="https://docs.letta.com/models/ollama" rel="nofollow">Ollama</a>, etc.). To enable access to these LLM API providers, set the appropriate environment variables when you use <code>docker run</code>:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="# replace `~/.letta/.persist/pgdata` with wherever you want to store your agent data docker run \ -v ~/.letta/.persist/pgdata:/var/lib/postgresql/data \ -p 8283:8283 \ -e OPENAI_API_KEY="your_openai_api_key" \ letta/letta:latest"><pre><span class="pl-c"><span class="pl-c">#</span> replace `~/.letta/.persist/pgdata` with wherever you want to store your agent data</span> docker run \ -v <span class="pl-k">~</span>/.letta/.persist/pgdata:/var/lib/postgresql/data \ -p 8283:8283 \ -e OPENAI_API_KEY=<span class="pl-s"><span class="pl-pds">"</span>your_openai_api_key<span class="pl-pds">"</span></span> \ letta/letta:latest</pre></div> <p dir="auto">If you have many different LLM API keys, you can also set up a <code>.env</code> file instead and pass that to <code>docker run</code>:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="# using a .env file instead of passing environment variables docker run \ -v ~/.letta/.persist/pgdata:/var/lib/postgresql/data \ -p 8283:8283 \ --env-file .env \ letta/letta:latest"><pre><span class="pl-c"><span class="pl-c">#</span> using a .env file instead of passing environment variables</span> docker run \ -v <span class="pl-k">~</span>/.letta/.persist/pgdata:/var/lib/postgresql/data \ -p 8283:8283 \ --env-file .env \ letta/letta:latest</pre></div> <p dir="auto">Once the Letta server is running, you can access it via port <code>8283</code> (e.g. sending REST API requests to <code>http://localhost:8283/v1</code>). You can also connect your server to the Letta ADE to access and manage your agents in a web interface.</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">👾 Access the ADE (Agent Development Environment)</h3><a id="user-content--access-the-ade-agent-development-environment" class="anchor" aria-label="Permalink: 👾 Access the ADE (Agent Development Environment)" href="#-access-the-ade-agent-development-environment"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="markdown-alert markdown-alert-note" dir="auto"><p class="markdown-alert-title" dir="auto"><svg class="octicon octicon-info mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8Zm8-6.5a6.5 6.5 0 1 0 0 13 6.5 6.5 0 0 0 0-13ZM6.5 7.75A.75.75 0 0 1 7.25 7h1a.75.75 0 0 1 .75.75v2.75h.25a.75.75 0 0 1 0 1.5h-2a.75.75 0 0 1 0-1.5h.25v-2h-.25a.75.75 0 0 1-.75-.75ZM8 6a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z"></path></svg>Note</p><p dir="auto">For a guided tour of the ADE, watch our <a href="https://www.youtube.com/watch?v=OzSCFR0Lp5s" rel="nofollow">ADE walkthrough on YouTube</a>, or read our <a href="https://www.letta.com/blog/introducing-the-agent-development-environment" rel="nofollow">blog post</a> and <a href="https://docs.letta.com/agent-development-environment" rel="nofollow">developer docs</a>.</p> </div> <p dir="auto">The Letta ADE is a graphical user interface for creating, deploying, interacting and observing with your Letta agents. For example, if you're running a Letta server to power an end-user application (such as a customer support chatbot), you can use the ADE to test, debug, and observe the agents in your server. You can also use the ADE as a general chat interface to interact with your Letta agents.</p> <p align="center" dir="auto"> <themed-picture data-catalyst-inline="true"><picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot.png"> <source media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot_light.png"> <img alt="ADE screenshot" src="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot.png" width="800"> </picture></themed-picture> </p> <p dir="auto">The ADE can connect to self-hosted Letta servers (e.g. a Letta server running on your laptop), as well as the Letta Cloud service. When connected to a self-hosted / private server, the ADE uses the Letta REST API to communicate with your server.</p> <div class="markdown-heading" dir="auto"><h4 tabindex="-1" class="heading-element" dir="auto">🖥️ Connecting the ADE to your local Letta server</h4><a id="user-content-️-connecting-the-ade-to-your-local-letta-server" class="anchor" aria-label="Permalink: 🖥️ Connecting the ADE to your local Letta server" href="#️-connecting-the-ade-to-your-local-letta-server"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">To connect the ADE with your local Letta server, simply:</p> <ol dir="auto"> <li>Start your Letta server (<code>docker run ...</code>)</li> <li>Visit <a href="https://app.letta.com" rel="nofollow">https://app.letta.com</a> and you will see "Local server" as an option in the left panel</li> </ol> <p align="center" dir="auto"> <themed-picture data-catalyst-inline="true"><picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot_agents.png"> <source media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot_agents_light.png"> <img alt="Letta logo" src="https://raw.githubusercontent.com/letta-ai/letta/refs/heads/main/assets/example_ade_screenshot_agents.png" width="800"> </picture></themed-picture> </p> <p dir="auto">🔐 To password protect your server, include <code>SECURE=true</code> and <code>LETTA_SERVER_PASSWORD=yourpassword</code> in your <code>docker run</code> command:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="# If LETTA_SERVER_PASSWORD isn't set, the server will autogenerate a password docker run \ -v ~/.letta/.persist/pgdata:/var/lib/postgresql/data \ -p 8283:8283 \ --env-file .env \ -e SECURE=true \ -e LETTA_SERVER_PASSWORD=yourpassword \ letta/letta:latest"><pre><span class="pl-c"><span class="pl-c">#</span> If LETTA_SERVER_PASSWORD isn't set, the server will autogenerate a password</span> docker run \ -v <span class="pl-k">~</span>/.letta/.persist/pgdata:/var/lib/postgresql/data \ -p 8283:8283 \ --env-file .env \ -e SECURE=true \ -e LETTA_SERVER_PASSWORD=yourpassword \ letta/letta:latest</pre></div> <div class="markdown-heading" dir="auto"><h4 tabindex="-1" class="heading-element" dir="auto">🌐 Connecting the ADE to an external (self-hosted) Letta server</h4><a id="user-content--connecting-the-ade-to-an-external-self-hosted-letta-server" class="anchor" aria-label="Permalink: 🌐 Connecting the ADE to an external (self-hosted) Letta server" href="#-connecting-the-ade-to-an-external-self-hosted-letta-server"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">If your Letta server isn't running on <code>localhost</code> (for example, you deployed it on an external service like EC2):</p> <ol dir="auto"> <li>Click "Add remote server"</li> <li>Enter your desired server name, the IP address of the server, and the server password (if set)</li> </ol> <hr> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">🧑🚀 Frequently asked questions (FAQ)</h2><a id="user-content--frequently-asked-questions-faq" class="anchor" aria-label="Permalink: 🧑🚀 Frequently asked questions (FAQ)" href="#-frequently-asked-questions-faq"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <blockquote> <p dir="auto"><em>"Do I need to install Docker to use Letta?"</em></p> </blockquote> <p dir="auto">No, you can install Letta using <code>pip</code> (via <code>pip install -U letta</code>), as well as from source (via <code>poetry install</code>). See instructions below.</p> <blockquote> <p dir="auto"><em>"What's the difference between installing with <code>pip</code> vs <code>Docker</code>?"</em></p> </blockquote> <p dir="auto">Letta gives your agents persistence (they live indefinitely) by storing all your agent data in a database. Letta is designed to be used with a <a href="https://en.wikipedia.org/wiki/PostgreSQL" rel="nofollow">PostgreSQL</a> (the world's most popular database), however, it is not possible to install PostgreSQL via <code>pip</code>, so the <code>pip</code> install of Letta defaults to using <a href="https://www.sqlite.org/" rel="nofollow">SQLite</a>. If you have a PostgreSQL instance running on your own computer, you can still connect Letta (installed via <code>pip</code>) to PostgreSQL by setting the environment variable <code>LETTA_PG_URI</code>.</p> <p dir="auto"><strong>Database migrations are not officially supported for Letta when using SQLite</strong>, so if you would like to ensure that you're able to upgrade to the latest Letta version and migrate your Letta agents data, make sure that you're using PostgreSQL as your Letta database backend. Full compatability table below:</p> <markdown-accessiblity-table><table> <thead> <tr> <th>Installation method</th> <th>Start server command</th> <th>Database backend</th> <th>Data migrations supported?</th> </tr> </thead> <tbody> <tr> <td><code>pip install letta</code></td> <td><code>letta server</code></td> <td>SQLite</td> <td>❌</td> </tr> <tr> <td><code>pip install letta</code></td> <td><code>export LETTA_PG_URI=...</code> + <code>letta server</code></td> <td>PostgreSQL</td> <td>✅</td> </tr> <tr> <td><em><a href="https://www.docker.com/get-started/" rel="nofollow">Install Docker</a></em></td> <td><code>docker run ...</code> (<a href="#-run-the-letta-server">full command</a>)</td> <td>PostgreSQL</td> <td>✅</td> </tr> </tbody> </table></markdown-accessiblity-table> <blockquote> <p dir="auto"><em>"How do I use the ADE locally?"</em></p> </blockquote> <p dir="auto">To connect the ADE to your local Letta server, simply run your Letta server (make sure you can access <code>localhost:8283</code>) and go to <a href="https://app.letta.com" rel="nofollow">https://app.letta.com</a>. If you would like to use the old version of the ADE (that runs on <code>localhost</code>), downgrade to Letta version <code><=0.5.0</code>.</p> <blockquote> <p dir="auto"><em>"If I connect the ADE to my local server, does my agent data get uploaded to letta.com?"</em></p> </blockquote> <p dir="auto">No, the data in your Letta server database stays on your machine. The Letta ADE web application simply connects to your local Letta server (via the REST API) and provides a graphical interface on top of it to visualize your local Letta data in your browser's local state.</p> <blockquote> <p dir="auto"><em>"Do I have to use your ADE? Can I build my own?"</em></p> </blockquote> <p dir="auto">The ADE is built on top of the (fully open source) Letta server and Letta Agents API. You can build your own application like the ADE on top of the REST API (view the documention <a href="https://docs.letta.com/api-reference" rel="nofollow">here</a>).</p> <blockquote> <p dir="auto"><em>"Can I interact with Letta agents via the CLI?"</em></p> </blockquote> <p dir="auto">The recommended way to use Letta is via the REST API and ADE, however you can also access your agents via the CLI.</p> <details> <summary>View instructions for running the Letta CLI</summary> <p dir="auto">You can chat with your agents via the Letta CLI tool (<code>letta run</code>). If you have a Letta Docker container running, you can use <code>docker exec</code> to run the Letta CLI inside the container:</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="# replace `<letta_container_id>` with the ID of your Letta container, found via `docker ps` docker exec -it <letta_container_id> letta run"><pre><span class="pl-c"><span class="pl-c">#</span> replace `<letta_container_id>` with the ID of your Letta container, found via `docker ps`</span> docker <span class="pl-c1">exec</span> -it <span class="pl-k"><</span>letta_container_id<span class="pl-k">></span> letta run</pre></div> <p dir="auto">You can also use <code>docker ps</code> within the command to automatically find the ID of your Letta container:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="docker exec -it $(docker ps -q -f ancestor=letta/letta) letta run"><pre class="notranslate"><code>docker exec -it $(docker ps -q -f ancestor=letta/letta) letta run </code></pre></div> <p dir="auto">In the CLI tool, you'll be able to create new agents, or load existing agents:</p> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="🧬 Creating new agent... ? Select LLM model: letta-free [type=openai] [ip=https://inference.memgpt.ai] ? Select embedding model: letta-free [type=hugging-face] [ip=https://embeddings.memgpt.ai] -> 🤖 Using persona profile: 'sam_pov' -> 🧑 Using human profile: 'basic' -> 🛠️ 8 tools: send_message, pause_heartbeats, conversation_search, conversation_search_date, archival_memory_insert, archival_memory_search, core_memory_append, core_memory_replace 🎉 Created new agent 'InspiringSpinach' Hit enter to begin (will request first Letta message) 💭 User engaged. Recognize as Chad. Acknowledge presence and establish connection. Explore interests and engage in meaningful discourse. 🤖 Hello, Chad. It's nice to meet you. I am keen on learning and exploring new ideas and concepts. Is there a specific topic you'd like to discuss today? > Enter your message: my name is Brad, not Chad... 💭 A discrepancy in identity. Reflect this change in core memory. Apologize for the oversight, and rectify the error. ⚡🧠 [function] updating memory with core_memory_replace First name: Chad → First name: Brad 💭 Apologize for the mistake in recognizing his name, and begin the conversation anew, addressing him by the correct name this time. 🤖 I apologize for the oversight, Brad. Let's restart. It's a pleasure to meet you, Brad. Is there a specific topic you'd like to discuss today? > Enter your message:"><pre class="notranslate"><code>🧬 Creating new agent... ? Select LLM model: letta-free [type=openai] [ip=https://inference.memgpt.ai] ? Select embedding model: letta-free [type=hugging-face] [ip=https://embeddings.memgpt.ai] -> 🤖 Using persona profile: 'sam_pov' -> 🧑 Using human profile: 'basic' -> 🛠️ 8 tools: send_message, pause_heartbeats, conversation_search, conversation_search_date, archival_memory_insert, archival_memory_search, core_memory_append, core_memory_replace 🎉 Created new agent 'InspiringSpinach' Hit enter to begin (will request first Letta message) 💭 User engaged. Recognize as Chad. Acknowledge presence and establish connection. Explore interests and engage in meaningful discourse. 🤖 Hello, Chad. It's nice to meet you. I am keen on learning and exploring new ideas and concepts. Is there a specific topic you'd like to discuss today? > Enter your message: my name is Brad, not Chad... 💭 A discrepancy in identity. Reflect this change in core memory. Apologize for the oversight, and rectify the error. ⚡🧠 [function] updating memory with core_memory_replace First name: Chad → First name: Brad 💭 Apologize for the mistake in recognizing his name, and begin the conversation anew, addressing him by the correct name this time. 🤖 I apologize for the oversight, Brad. Let's restart. It's a pleasure to meet you, Brad. Is there a specific topic you'd like to discuss today? > Enter your message: </code></pre></div> </details> <hr> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">⚡ Quickstart (pip)</h2><a id="user-content--quickstart-pip" class="anchor" aria-label="Permalink: ⚡ Quickstart (pip)" href="#-quickstart-pip"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="markdown-alert markdown-alert-warning" dir="auto"><p class="markdown-alert-title" dir="auto"><svg class="octicon octicon-alert mr-2" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M6.457 1.047c.659-1.234 2.427-1.234 3.086 0l6.082 11.378A1.75 1.75 0 0 1 14.082 15H1.918a1.75 1.75 0 0 1-1.543-2.575Zm1.763.707a.25.25 0 0 0-.44 0L1.698 13.132a.25.25 0 0 0 .22.368h12.164a.25.25 0 0 0 .22-.368Zm.53 3.996v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 11a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path></svg>Warning</p><p dir="auto"><strong>Database migrations are not officially supported with <code>SQLite</code></strong></p> <p dir="auto">When you install Letta with <code>pip</code>, the default database backend is <code>SQLite</code> (you can still use an external <code>postgres</code> service with your <code>pip</code> install of Letta by setting <code>LETTA_PG_URI</code>).</p> <p dir="auto">We do not officially support migrations between Letta versions with <code>SQLite</code> backends, only <code>postgres</code>. If you would like to keep your agent data across multiple Letta versions we highly recommend using the Docker install method which is the easiest way to use <code>postgres</code> with Letta.</p> </div> <details> <summary>View instructions for installing with pip</summary> <p dir="auto">You can also install Letta with <code>pip</code>, which will default to using <code>SQLite</code> for the database backends (whereas Docker will default to using <code>postgres</code>).</p> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Step 1 - Install Letta using <code>pip</code></h3><a id="user-content-step-1---install-letta-using-pip" class="anchor" aria-label="Permalink: Step 1 - Install Letta using pip" href="#step-1---install-letta-using-pip"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="pip install -U letta"><pre>pip install -U letta</pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Step 2 - Set your environment variables for your chosen LLM / embedding providers</h3><a id="user-content-step-2---set-your-environment-variables-for-your-chosen-llm--embedding-providers" class="anchor" aria-label="Permalink: Step 2 - Set your environment variables for your chosen LLM / embedding providers" href="#step-2---set-your-environment-variables-for-your-chosen-llm--embedding-providers"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="export OPENAI_API_KEY=sk-..."><pre><span class="pl-k">export</span> OPENAI_API_KEY=sk-...</pre></div> <p dir="auto">For Ollama (see our full <a href="https://docs.letta.com/install" rel="nofollow">documentation</a> for examples of how to set up various providers):</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="export OLLAMA_BASE_URL=http://localhost:11434"><pre><span class="pl-k">export</span> OLLAMA_BASE_URL=http://localhost:11434</pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Step 3 - Run the Letta CLI</h3><a id="user-content-step-3---run-the-letta-cli" class="anchor" aria-label="Permalink: Step 3 - Run the Letta CLI" href="#step-3---run-the-letta-cli"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">You can create agents and chat with them via the Letta CLI tool (<code>letta run</code>):</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="letta run"><pre>letta run</pre></div> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="🧬 Creating new agent... ? Select LLM model: letta-free [type=openai] [ip=https://inference.memgpt.ai] ? Select embedding model: letta-free [type=hugging-face] [ip=https://embeddings.memgpt.ai] -> 🤖 Using persona profile: 'sam_pov' -> 🧑 Using human profile: 'basic' -> 🛠️ 8 tools: send_message, pause_heartbeats, conversation_search, conversation_search_date, archival_memory_insert, archival_memory_search, core_memory_append, core_memory_replace 🎉 Created new agent 'InspiringSpinach' Hit enter to begin (will request first Letta message) 💭 User engaged. Recognize as Chad. Acknowledge presence and establish connection. Explore interests and engage in meaningful discourse. 🤖 Hello, Chad. It's nice to meet you. I am keen on learning and exploring new ideas and concepts. Is there a specific topic you'd like to discuss today? > Enter your message: my name is Brad, not Chad... 💭 A discrepancy in identity. Reflect this change in core memory. Apologize for the oversight, and rectify the error. ⚡🧠 [function] updating memory with core_memory_replace First name: Chad → First name: Brad 💭 Apologize for the mistake in recognizing his name, and begin the conversation anew, addressing him by the correct name this time. 🤖 I apologize for the oversight, Brad. Let's restart. It's a pleasure to meet you, Brad. Is there a specific topic you'd like to discuss today? > Enter your message:"><pre class="notranslate"><code>🧬 Creating new agent... ? Select LLM model: letta-free [type=openai] [ip=https://inference.memgpt.ai] ? Select embedding model: letta-free [type=hugging-face] [ip=https://embeddings.memgpt.ai] -> 🤖 Using persona profile: 'sam_pov' -> 🧑 Using human profile: 'basic' -> 🛠️ 8 tools: send_message, pause_heartbeats, conversation_search, conversation_search_date, archival_memory_insert, archival_memory_search, core_memory_append, core_memory_replace 🎉 Created new agent 'InspiringSpinach' Hit enter to begin (will request first Letta message) 💭 User engaged. Recognize as Chad. Acknowledge presence and establish connection. Explore interests and engage in meaningful discourse. 🤖 Hello, Chad. It's nice to meet you. I am keen on learning and exploring new ideas and concepts. Is there a specific topic you'd like to discuss today? > Enter your message: my name is Brad, not Chad... 💭 A discrepancy in identity. Reflect this change in core memory. Apologize for the oversight, and rectify the error. ⚡🧠 [function] updating memory with core_memory_replace First name: Chad → First name: Brad 💭 Apologize for the mistake in recognizing his name, and begin the conversation anew, addressing him by the correct name this time. 🤖 I apologize for the oversight, Brad. Let's restart. It's a pleasure to meet you, Brad. Is there a specific topic you'd like to discuss today? > Enter your message: </code></pre></div> <div class="markdown-heading" dir="auto"><h3 tabindex="-1" class="heading-element" dir="auto">Step 4 - Run the Letta server</h3><a id="user-content-step-4---run-the-letta-server" class="anchor" aria-label="Permalink: Step 4 - Run the Letta server" href="#step-4---run-the-letta-server"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">You can start the Letta API server with <code>letta server</code> (see the full API reference <a href="https://docs.letta.com/api-reference" rel="nofollow">here</a>):</p> <div class="highlight highlight-source-shell notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="letta server"><pre>letta server</pre></div> <div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="Initializing database... Running: uvicorn server:app --host localhost --port 8283 INFO: Started server process [47750] INFO: Waiting for application startup. INFO: Application startup complete. INFO: Uvicorn running on http://localhost:8283 (Press CTRL+C to quit)"><pre class="notranslate"><code>Initializing database... Running: uvicorn server:app --host localhost --port 8283 INFO: Started server process [47750] INFO: Waiting for application startup. INFO: Application startup complete. INFO: Uvicorn running on http://localhost:8283 (Press CTRL+C to quit) </code></pre></div> </details> <hr> <div class="markdown-heading" dir="auto"><h2 tabindex="-1" class="heading-element" dir="auto">🤗 How to contribute</h2><a id="user-content--how-to-contribute" class="anchor" aria-label="Permalink: 🤗 How to contribute" href="#-how-to-contribute"><svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg></a></div> <p dir="auto">Letta is an open source project built by over a hundred contributors. There are many ways to get involved in the Letta OSS project!</p> <ul dir="auto"> <li><strong>Contribute to the project</strong>: Interested in contributing? Start by reading our <a href="https://github.com/cpacker/MemGPT/tree/main/CONTRIBUTING.md">Contribution Guidelines</a>.</li> <li><strong>Ask a question</strong>: Join our community on <a href="https://discord.gg/letta" rel="nofollow">Discord</a> and direct your questions to the <code>#support</code> channel.</li> <li><strong>Report issues or suggest features</strong>: Have an issue or a feature request? Please submit them through our <a href="https://github.com/cpacker/MemGPT/issues">GitHub Issues page</a>.</li> <li><strong>Explore the roadmap</strong>: Curious about future developments? View and comment on our <a href="https://github.com/cpacker/MemGPT/issues/1533" data-hovercard-type="issue" data-hovercard-url="/letta-ai/letta/issues/1533/hovercard">project roadmap</a>.</li> <li><strong>Join community events</strong>: Stay updated with the <a href="https://lu.ma/berkeley-llm-meetup" rel="nofollow">event calendar</a> or follow our <a href="https://twitter.com/Letta_AI" rel="nofollow">Twitter account</a>.</li> </ul> <hr> <p dir="auto"><em><strong>Legal notices</strong>: By using Letta and related Letta services (such as the Letta endpoint or hosted service), you are agreeing to our <a href="https://www.letta.com/privacy-policy" rel="nofollow">privacy policy</a> and <a href="https://www.letta.com/terms-of-service" rel="nofollow">terms of service</a>.</em></p> </article></div></div></div></div></div> <!-- --> <!-- --> <script type="application/json" id="__PRIMER_DATA_:R0:__">{"resolvedServerColorMode":"day"}</script></div> </react-partial> <input type="hidden" 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<ul class="list-style-none d-flex flex-wrap mb-n2"> <li class="mb-2 mr-2" > <a href="https://github.com/cpacker" class="" data-hovercard-type="user" data-hovercard-url="/users/cpacker/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/5475622?s=64&v=4" alt="@cpacker" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/sarahwooders" class="" data-hovercard-type="user" data-hovercard-url="/users/sarahwooders/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" > <img src="https://avatars.githubusercontent.com/u/8505980?s=64&v=4" alt="@sarahwooders" size="32" height="32" width="32" data-view-component="true" class="avatar circle" /> </a> </li> <li class="mb-2 mr-2" > <a href="https://github.com/mattzh72" class="" data-hovercard-type="user" 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